Electric-lamp attachment.



c. SCHICKERLING. ELECTRIC LAMP ATTACHMENT. 7

APPLICATION FILED FEB. 3, IBM. 1,750,080 Patented. Dec. 11,1917.

, 2 SHEETS-SHEET l-.

A TTORNEV8 c. SCHICKERLING. ELECTRIC LAMP ATTACHMENT. APPLICATION FILED FEB. 3. 1917.

Patented Dec. 11, 1917.

2 SHEETS-SHEET 2.

WITNESSES CONRAD SCHICKERLING, OF WEEHAWKEN HEIGHTS, NEW JERSEY, ASSIGNOR TO LILLIE E. SCHICKERLING, OF WEEHAWKEN HEIGHTS, NEW JERSEY.

ELECTRIC-LAMP ATTACHMENT.

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Specification of Letters Patent. Patented-Deg, 11, 391*},

Application filed February 3, 1917. Serial No. 146,387.

To all whom it may concern:

Be it known that I, CONRAD SCHICKEB- LING, a subject of the German Emperor, and a resident of Weehawken Heights, in the county of Hudson and State of New Jersey, have inventeda new and Improved Electric- Lamp Attachment, of which the following is a full, clear, and exact description.

This invention relates .to electric lamps and has particular reference to such lamps as are designed for head-lights or other reflectors.

Among the objects of the invention is to provide an electric lamp bulb or attachment for a bulb which isso designed as to cut off or reduce the effect of all such objectionable light rays from a reflector as tend to produce a glare from the upper portion of the light or above the axis of the beam of light.

Another object of the invention is to produce by improved means an intensification of the light that is to be thrown downwardly upon the roadway or forwardly below the axis of the beam. 1

A still further object of this improvement is to provide an adapter for the coupling of my improved lamps to any standard socket.

With the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in whichlike reference characters designate the same parts in the several views, and in wh1ch- Figure 1 is a vertical longitudinal section,

showing one form of my improvement applied to a standard reflector;

Fig. 2 is a vertical transverse sectional detail on the line 22 of Fig. 1;

Fig. 2 is a similar view, but indicating a slightly modifiedformor arrangement of the device; Fig. 3 is a side elevation of a standard clear glass bulb having one form of my improvement applied thereto, parts of the same being broken away;

Fig. 4 is a plan view corresponding to Fig. 3;

Fig. 5 is a rear elevation of the wire yoke onnector for the attachment indicated in aa Figs. 3, 4, 6, and 7;

Fig. 6 is a vertical transverse sectionon the 11116 66 of Fig. 3;

Fig. 7- isa bottom plan view of the at-" from that of Fig. 6;

F igs. 9and 10 are diagrams indicating the effect ofmy improvement with respect to the action of the light upon diflerent types of reflectors; i i

Fig. 11 is a vertical longitudinal section of my coupling or adapter; and

Fig. 12 is a transverse sectional detail on the line l212 of Fig. 11.

In the automobile practice especially it is Well understood that indiiferent States or pursuant to the ordinances of difi'erent municipalities the lamps of the headlights must be so arranged or controlled as to vary the effect of the light or action of the headlights, and ursuant to the requirements in many jurisdictions the excess glare from the headlights emerging from the reflectors lampor else carried by an attachment in direct contact with the lamp bulb,

As shown therefore in Fig. 1-,the bulb 15 adapted for connection in the usual manner to the socket 16 of conventional type, is provided at its upper and front part, with a translucent section or portion 17 which may be formedby frosting or by the tintingof the glass itself or by the application of a coloring matter to either'the inner or the outer surface thereof, usually for convenience the outer surface. The nature of this tinting or coloring may 'vary indefinitely so lon as the particular color is not offensive tot e requirements of the law. Any light rays therefore that pass through the portion 17 are so softened or reduced in intensity as to be unobjectionable.-

18' indicates an opaque {portion of the .an objectionable manner are reflected directly the other way and cooperate with the rays of light emerging directly from the lamp in the usual manner. it provide therefore as a means to eflect these results, a coating of silver, or its equivalent, 18 applied directly to the glass of the lamp, either upon the inside of the bulb, asshown in 2, or on the outside, as shown in Fig. 2, making this portion 18 of the lamp in the nature of a mirror. Surrounding the silve red portion of the lamp is a layer or coating 18 of heavy paint, or its equivalent, which guards and protects the silver. With this lamp arranged substantially as above ill till

indicated and applied to a shallow reflector, as shown in Figs. 1 and 9, the only intense light that'emerges from the lamp is thrown downwardly directly upon the roadway or downwardly and thence horizontally in accordance with the usual reflect of a parabolic reflector. lln this connection it is to be noted that with a. deep type or design of reflector, as indicated in Fig. 10, the improved lamp is preferably turned about its axis through 180 degrees, or with the opaque and translucent portions at the bottom. Under these conditions, the intense light is thrown from the lamp only by a reflection from the upper portion of the reflector.

Accordin to the type of the reflector, therefore, file lamp obviously can be attached thereto in a particular manner so as to get the desired results. lln practice, the socket to which the base of the standard clear glass bulb lamp is connected by means of bayonet slot connections, as indicated in the drawings, may be disposed at any angle with respect to the axis of the lamp. There fore, I provide an adapter or coupling mem-' ber whereby ll may apply my lamps to any standard sockets and adjust the lamps as l herein suggest with the reflectlng portions either up or down as would be required,

irrespective of the exact location .of the bayonet slots in the sockets. J fhereas the base 19 of the lamp is ordinarily provided with lugs or pins 20 diametrically opposite each other in cooperation with the bayonet slots, T provide a sleeve 21 adapted to be applied to the base 22 of my lamps, said base being provided with a circumferential groove 23, into which lugs 24: formed'on the interior of the sleeve 21 are adapted to project. This base 22 is made as much. smaller than the internal diameter of the standard socket as the thickness of the sleeve, so that when the sleeve is applied to the base 22, as shown in Fig. 11 and with the sleeve provided with the lugs 20, the lamp thus equipped may be applied to the standard socket in the usual manner, and since the lugs 20 carried by the sleeve do not extend into the base of the lamp, the lamp may be adjusted around its axis as may be desired Y and may be so held trictionally.

fleeting portion 18 as previously described.

The attachment is preferably made of glass or some other equivalent material. The wing portions thereof 26 are preferably of translucent glass, celluloid or the like, and the hemispherical portion 25 is made as an integral part thereoi or attached in any suitable manner thereto. The edges of the wings may be reinforced either by the thickening of the materialor otherwise and the curved edges thereof are adapted to fit close to the reflecting surface of the reflector. The wings, as well as the translucent portion 17, serve to modify any light rays which tend to pass therethrough, and the opaque reflecting portion serves the purposes already stated. As a means for applying this attachment to any standard clear glass lamp bulb, l indicate a yoke 27. See Figs. 5 and 7. Said yoke is made preferably oi endless wire and comprises essentially two circular portions, one 28, a horizontal portion, and the other 29, a vertical portion. The front part or) the loop 28 is preferably deflected downwardly at 80, so as to take under the nipple portion of the bulb. The top of the loop 20 and the side portions of the loop 28 are titted into or under a set of clips 31 and 32 formed as fined parts of the hemisphere. The fingers 33 constituting the connecting point between the two loops 28 and 29 are of a flexible nature and are adapted to snap around the base of the lamp close to the bulb after the part 30 is slipped beneath the nipple. By this means the attachment is socured in its proper place, subject to adjust ment as may be desired around the axis of the lamp.

lln Fig. 8, bulb constructed or blown so as to include the wing portions 26 as parts of the hollow 1 show a special form of lamp wi l tee

at 15'. These Wings are rendered translucent along one side thereof, as for example the upper side, by tinting of any suitable nature, as indicated at 17 and coats of silver 18 and paint, or its equivalent, l8 are applied directly to the glass.

I claim:

1. An incandescent lamp comprising a transparent bulb having a forward clear section at one side of its longitudinal axis, and a forward translucent section, means applied to the rear portion of the bulb to render the same opaque above and below said axis and adjoining the rear portions of. the translucent and clear sections, and means to form a reflecting surface around the inner portion of the opaque section, all for the purpose described.

2. An incandescent lamp comprising a transparent bulb having a forward clear section at one side of its longitudinal axis, and a forward translucent section at the opposite side of its longitudinal axis, means applied to the rear portion of the bulb to render the same opaque above and below its said longitudinal axis and adjoining the rear portions 7 of the translucent and clear sections, and means to form a reflecting surface around the inner portion of the opaque section, all for the purpose described.

CONRAD SCHICKERLIN G. 

